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【Objective】 To address the problems of unscientific selection of closure materials for dike breaches, inaccurate calculation of material quantities, and the lack of staged dynamic adaptation analysis in existing research, a systematic method for selecting closure materials and calculating their demand is established. It aims to improve emergency response efficiency, minimize disaster losses, and provide scientific support for flood control and emergency decision-making. 【Methods】 Based on fluid-solid coupling mechanisms, the interaction between the hydraulic characteristics of breaches and dumped materials was investigated. The physical properties and application conditions of five typical types of closure materials were systematically analyzed. According to the staged characteristics of breach closure, geometric modeling and engineering generalization methods were adopted to establish a staged material demand calculation model. Empirical verification was conducted using the breach across the Tuanzhouyuan in the Dongting Lake as a case study. 【Results】(1) The constructed material demand calculation model exhibited good engineering applicability in terms of both the suitability of closure material selection and quantity calculation accuracy.(2) It clarified the differences in material requirements across different closure stages, established a quantitative estimation method for material quantities at each stage, and significantly improved resource allocation efficiency. Case verification indicated that this method could provide scientific and reliable decision support for on-site emergency response. 【Conclusion】 The proposed staged material selection and demand calculation method is innovative and practical. It achieves the precise matching among hydraulic conditions, stage characteristics, and material parameters, provides a scientific basis for emergency response, and promotes technological progress in flood control and emergency rescue. It offers important theoretical value and practical significance for improving China′s disaster prevention and mitigation capabilities.
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Basic Information:
DOI：10.19760/j.ncwu.zk.2026005
China Classification Code:TV871.3
Citation Information:
[1]HUANG Wei,HAN Yue,DING Shiyu ,et al.Research on Selection and Demand Calculation Method of Closure Materials Based on Multi-stage Characteristics of Breach Emergency Response[J].Journal of North China University of Water Resources and Electric Power(Natural Science Edition),2026,47(01):35-43.DOI:10.19760/j.ncwu.zk.2026005.
Fund Information:
国家重点研发项目子课题五(2023YFC3011405);国家重点研发项目(2023YFC3011400)
2026-01-25
2026-01-25